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"The Limited In Vitro Lifetime of Human Diploid Cell Strains" (1964), by Leonard Hayflick
By: Zane Bartlett
| Published: Feb 11, 2017
Leonard Hayflick in the US during the early 1960s showed that normal populations of embryonic cells divide a finite number of times. He published his…
Cell DivisionBiology, ExperimentalCells, CulturedEmbryo Culture Techniquescell aging
Beadle and Tatum's 1941 Experiments with Neurospora Revealed that Genes Produce Enzymes
By: Amy Pribadi
| Published: Oct 12, 2016
This illustration shows George Beadle and Edward Tatum's experiments with Neurospora crassa that indicated that single genes produce singl
Neurospora crassaMicrobiologyX-raysGeneticsEnzymes
HeLa Cell Line
By: Rohini Nott
| Published: Sep 18, 2020
The HeLa cell line was the first immortal human cell line that George Otto Gey, Margaret Gey, and Mary Kucibek first isolated from Henrietta Lacks…
HeLa CellsContinuous cell linesResearch EthicsInformed consent (Medical law)Cervix uteri--Cancer
Hermann Joseph Muller's Study of X-rays as a Mutagen, (1926-1927)
By: Kevin M. Gleason
| Published: Mar 07, 2017
Hermann Joseph Muller conducted three experiments in 1926 and 1927 that demonstrated that exposure to x-rays, a form of high-energy radiation, can…
X-raysRadiationGeneticsMutationDrosophila
The China-US Study on the Prevention of Neural Tube Defects using Folic Acid (1999)
By: Dorothy Regan Haskett, Lauren Lynch
| Published: Oct 11, 2017
From 1993 to 1995 researchers led by Robert J. Berry from the US Centers for Disease Control headquartered in Atlanta, Georgia, and Zhu Li from…
Center for Disease ControlFolic AcidFolic Acid DeficiencyFolic acid in human nutritionNeural tube--Abnormalities
Gene Transfer Strategy Used to Treat Tay - Sachs Disease (2005), by Sabata Martino’s Research Group
By: Tiffany Nardi
| Published: Feb 21, 2017
In the early 2000s, Sabata Martino and a team of researchers in Italy and Germany showed that they could reduce the symptoms of Tay-Sachs in…
Tay-Sachs DiseaseVirus-vector relationshipsGloboid Cell LeukodystrophyGangliosidesGene Therapy
"Purification of a Nerve-Growth Promoting Protein from the Mouse Salivary Gland and its Neuro-Cytoxic Antiserum" (1960), by Stanley Cohen
By: Adam R. Navis
| Published: Oct 30, 2007
Stanley Cohen published "Purification of a Nerve-Growth Promoting Protein from the Mouse Salivary Gland and its Neuro-Cytoxic Antiserum" in the…
Cohen, Stanley, 1937-Nerve Growth FactorExperimentsMice
David Wildt's Domestic Cat and Cheetah Experiments (1978-1983)
By: Caroline Appleton
| Published: Dec 19, 2011
David Wildt's cheetah (Acinonyx jubatus) research from 1978-1983 became the foundation for the use of embryological techniques in endangered species…
Endangered SpeciesExperimentsCatsFertility
"The Development of the Turtle Carapace" (1989), by Ann Campbell Burke
By: Guido Caniglia
| Published: Oct 20, 2011
Ann Campbell Burke examines the development and evolution of vertebrates, in particular, turtles. Her Harvard University experiments, described in…
LiteratureExperimentsPublicationsTurtlesEvolution
"A molecular wound response program associated with regeneration initiation in planarians" (2012), by Danielle Wenemoser et al.
By: Joe Brinkman
| Published: May 09, 2017
In 2012, a team of scientists across the US conducted an experiment to find the mechanism that allowed a group of flatworms, planarians, to…
Regeneration (Biology)GeneticsPlanariansGenesWound Healing